用逗号分隔的多封电子邮件的正则表达式和有效的电子邮件

Question

I have regex to check multiple valid emails separated by commas, But I'm not able to update it to allow multiple trailing and leading whitespace. I should allow below pattern to match my regex.

abc@test.com,bcd@test.com, new@test.com,   hello@test.com   ,new@test.com // allow
abc@test.com bcd@test.comnew@test.com// don't allow

Regex which I've now.

^(\s?[^\s,]+@[^\s,]+\.[^\s,]+\s?,)*(\s?[^\s,]+@[^\s,]+\.[^\s,]+)$

The above regex is not allowing the pattern

abc@test.com,bcd@test.com, new@test.com,   hello@test.com   ,new@test.com

It allows only one white space before an after the comma. I want the regex to allow multiple white space before and after the comma

Answer 1

Why not first spiting the string:

function getValidEmailAddresses(strInput)
{
return strInput.split(',').map(p => p.trim())
               .filter(c=> c.test(/^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/));

}